Hi,
Davis sells an Ed Rayl made 48" barrel in 62 cal that is very good for a fowler or fusil. It is 1 1/4" at the breech and tapers rapidly to less than 1" and then tapers slowly to about 3/4" at the muzzle. The barrel walls are nice and thin at the muzzle. It does not have a wedding band at the transition, just a simple change from octagon to round. I like that because I can shape it myself. If I had known about it a year ago, I would have cut it back to 42" and used it on the English fowler I posted. I am currently using it full length on my New England fowler project.
dave